Glenn K.wrote a review of Speedplay Zero Aero Walkable Cleats on November 23, 2016
Familiarity: I've put it through the wringer
I purchased two sets of the new walkable cleats this summer. The cleats function well but seem a bit softer than the v2 cleats and are not wearing as well. The walkable covers, unfortunately, are terrible. I think they are too soft heavy use. The left covers (my step off foot most of the time) on two sets of shoes have deformed to the point where it was difficulty to clip in to the pedal. Both sets of covers loosened up after about 150 miles and I have since lost one of them on the road as well.
We shouldn't even talk about the plugs, which do not stay in AT ALL, I'm talking for the 5 steps out of the house. My dog has already eaten one because it fell off in the few steps out the door. A Speedplay rep I spoke with on the phone told me that, "well, they're not really supposed to stay in..." Say what? Thats why I bought them in the first place. I have some replacements on the way after complaining to Speedplay and we'll see how these hold up. Judging by the reviews for these on Amazon, however, I'm not alone with these problems.